Eichakd morris



(No Model.) R. MORRIS.

AUXILIARY RIFLE BARREL.

Patented Jan. 10,1882.

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`UNITED STATES PATENT OFFICE.

RICHARD MonRIs, on LEwisHAM, COUNTY or KENT, ENGLAND.

`AUXILIARY RIFLE-BARREL.

SPECIFICATION forming' part of Letters Patent vNo. 252,241, dated January 10, 1882,

Application filed October 5, 1881.

lTo all whom z'tvmay concern:

, Be it known that I, RICHARD MORRIS, a. citizen of England, Iesding at Lewisham, in the county of Kent, England, have invented l an improved appliance to breech-loading lirearms for facilitating practice in sighting and aim, and for other purposes, (for which I have obtained a patent ir. Great Britain, No. 1,773,

bearing date April 25, 1881, and in Italy,

bearing date Julie 30, 1881,) oi' which the following is a specilication.

My invention relates to an improved construction of inner barrel for breech-loading rifles and other flrearms, either for enabling small cartridges to be employed therein for ,aiming and sighting practieein rifle drill or for converting smooth large bore tire-arms into rifles.

In fitting inner barrels to firearms, hereto fore these have been made of a single piece inserted at the breech end of the barrel, and this has necessitated the removal of the sliding breechbolt orfotherwise removing the breech mechanism before the inner barrel could be inserted or removed. According to my'present invention Iobviate this inconvenience by forming the breech end ofthe inner barrel of a separate piece, of a length equal to or less than that ot the ordinary-sized cartridge, so that this part of the inner barrel can be inserted into the breecl1-cha1nber of the rifle-barrel in the same manner as an ordinaryy cartridge, while the other part of the inner barrel is passed in through the muzzle of the ritle and is screwed with its inner end into the front end of the other part, after which the combined tube is fixed scurelyin the barrel by a screwnut at the nozzle end. The breech part ofthe inner tube is by preference provided with a sliding piece, that is acted uponl by the ordinary extractor of the gun, so as to cause it to extract the small cartridge-case from the inner barrel. In cases where the small cartridges employed are tired by percussion at their edges the hole inthe breech-block and the lining-tube are made so much eccentric to the bore ot" the lille as to bring the edgeot' the small cartridge in line with the striker.

Figureloftheaccompanyingdrawingsshows a longitudinal section of a ritleLbarrel'on line whether with central or rim tire.

X X, Fig. 2, with an inner tube applied to it -(No model. l Patented in England April 25, 1881, and in Italy June 30, 1681.

for the purposes ot'- my before-described in vention. Fig. 2 shows an elevation of the breech, end thereof.

Into the breech end of the rifle-barrel A is slid the block B, taking the place ot the ordinary cartridge, fitting the breech-chamber and bored to receive a` very small cartridge, C. Into the muzzle of the barrel is slid, first, a anged tube, D, and through this is passed a small tube or barrel, E, the bore of which corresponds with the bore of theA block B,'into which its inner end is screwed, as shown, the front end. being made to project some distance through the barrel' A, and provided with a head, F, by which itcan be turned for this purpose. The front end ofthe barrel E has an external screw-thread, on which is a nut, G, so that when it has been screwed into the block B both parts can be securely held in the riflebarrel, without any special appliance to the latter, by screwing up the nut G so as to bear against the flanged end of the tube D.

It is preferred to provide means for extracting the case of the small cartridge by means of the ordinary extractor, H, of the ride. For this purpose the block B may be provided with a sliding piece, I, the inner edge of which passes underthe rim of the small cartridge C, while its outer edge passes in front of the extractor H, (to leave room for the fork ot' which the block has grooves formed on each side, as show`n,) so that the forward motion of the latter will at the same time cause the slide I to push out the smallcartridge case.

It will be evident that the slide I. might be dispensed with if the base of the small eartridge be provided with a disk of a diameter corresponding with that of the base ofthe ordinary-sized cartridge used with the rifie, so that the extractor H can act directly on such disk.

It will be seen that the above coutrivance can be easily and rapidly attached to and detached from the rifle, and be adapted for use with any description of Abreech-loading rifle, It may also be applied with. advantage for converting a gun of large and smooth bore-such as a fowling-pieceninto a ride.

As it would be very difficult and expensive to manufacture the entire part E of the inner IOC 4as that of E, the riding-lands therefore projecteiner barrel of steel with riding grooves, I prefer to. construct it of two separate lengths, as shown at Figs. 3 and 4, of which the rear part, E', is of copper, Whilefront part, E', only is ot' steel. The' tube E has a smooth bore ot' a diameter equal to that of the bullet, while the diameter of E at the bottom of the riding grooves is the same The copper tube Emay with advantage he made equal to two-thirds and the steel tube one-third of the entire barrel.

. Having thus described the nature ot' my in- `vention and in what manner the same is to be performed, I claim- An inner barrel for rilles` or small arms, consisting of a removable tube, E, inserted from the muzzle end g and screwed into abreechhloek, B, inserted from the breech end and secured by a screw-nut, Gr, substantially as and l'or the purposes described.

1n testimony7 whereof I have signed my nume to this specicatiomin the presence of two subscribing witnesses, this 16th day of September, 35 A. D. 1881.

ing inward from such diameter. The joint of the two tubes m ay either be formed by screwing, as shown to an exaggerated scale at Fig. 4, or by soldering or brazing, and the rilie lands of the tube E' are rimed oft' so as to die away to' nothing at thejoint, as shown, so that the bullet takes the riding gradually as it passes thejoint. Thejoiut is by preference covered by a sleeve, E', sold ered on, the outer diameter of which ts the bore of the rifle, as indicated by the dotted RICHARD MORI? IS.

Witnesses: v

\ lines, Fig. 4, thereby preventing any sagging CHAS. D. ALEEL,

of the tube within the barrel. OLIVER IMRAY. 

